The Celestron SkyMaster 25x70mm binocular is the ideal choice for amateur astronomers or anyone who observes at great distances. The 70mm objective lenses have excellent light-gathering capabilities, delivering superior low-light performance, even in the dimmest conditions. Choose SkyMaster for dusk, dawn, and nighttime astronomical viewing. Moreover, the prisms inside the binocular are made of high-quality BaK-4 glass so that more light is reflected off their internal faces and passes through to the eye. The multi-coated lenses and BaK-4 prisms maximize light transmission for remarkably bright, highly detailed images. The binocular's durable exterior housing protects your SkyMaster from damage without weighing you down. Viewing through the SkyMaster binoculars is comfortable for eyeglass and non-eyeglass wearers, thanks to the foldable rubber eyecup. The SkyMaster binocular is tripod-adaptable, so you can use the built-in binocular tripod adapter to mount it on any standard photographic tripod or monopod for extended viewing or digiscoping (photography through the eyepiece). Buy with confidence from the world’s No.1 telescope brand and a leading binocular manufacturer, based in California since 1960. You’ll also receive a Limited Lifetime warranty and unlimited access to technical support from our team of US-based experts.